Electron Dynamics in Anatase TiO2 Nanoparticles by Ultrafast Broadband Deep-Ultraviolet Spectroscopy

The optical bandgap of anatase TiO2 nanoparticles is dominated by bulk absorption bands in the deep-ultraviolet due to strongly bound excitons. These spectral features can be utilized as a sensitive probe of carrier and lattice dynamics inside the TiO2 nanoparticles. Here, we implement ultrafast broadband spectroscopy tuned to the exciton resonances in order to track the electron cooling in the conduction band of bare anatase nanoparticles and monitor the electron injection dynamics from an external dye in the case of sensitized anatase nanoparticles.


Published in:
Xxi International Conference On Ultrafast Phenomena 2018 (Up 2018), 205, 05017
Presented at:
21st International Conference on Ultrafast Phenomena (UP), Hamburg, GERMANY, Jul 15-20, 2018
Year:
Jan 01 2019
Publisher:
Cedex A, E D P SCIENCES
ISSN:
2100-014X
Note:
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0.
Laboratories:


Note: The status of this file is: Anyone


 Record created 2020-10-02, last modified 2020-10-29

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